WASHINGTON — President Donald Trump stood by his national security adviser, Mike Waltz, after The Atlantic’s editor-in-chief was accidentally added to a private, high-level chat on the ...

The Discovery Hybrid Rheometer (DHR) from TA Instruments features powerful new technologies from the world leader in rheological measurements. Our new hybrid technology combines a patented ...

NBC News Senior White House Correspondent Garrett Haake fact-checked White House Press Secretary Karoline Leavitt over her claim that a “Democrat activist” judge blocked President Donald ...